decapitate

SMART Vocabulary: related words and phrases

Death penalties
boot
boots on the groundidiom
burn
capital offence
capital punishment
chair
condemn
condemn someone to (do) something
death warrant
decapitate
decapitation
electrocution
firing squad
guillotine
hang
hanging
hangman
hung
stake
the electric chair

Examples from literature

For those beheaded in battle there is another burial, which is described in a later chapter. 
It arose out of a report that four soldiers had been arrested and were to be secretly beheaded the same night. 
The mayor sentenced him to be beheaded. 
They were all beaten with rods and beheaded in the middle of the forum. 
They were all seized, by the emperor's order, and beheaded. 

behead | American Dictionary

behead
verb[ T ]
us/bɪˈhed/
to cut off the head of a person